BASSETITE

Luminescence:

UV Type

Main color

Intensity

Observation Frequency

Phosphorescence (in the common meaning of the term) seen by naked eye:

No Data

Comments:

Microscopic and microprobe study of polished sections resulted in identification of the supposed bassetite of the Jáchymov (Joachimsthal) ore district as a mixture of meta-autunite and amorphous Fe-hydroxides, which replaced the original U-mica. The pseudomorphs fluoresce mottled yellow in ultraviolet light. (see bibliography).But Bassetite itself is non-fluorescent.

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